Script that asks for matrix as input

Question

Ryan 2014-3-31

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/123915-script-that-asks-for-matrix-as-input

回答： Abhishek Pawarq 2021-8-22

I am trying to write a script that I will use on a number of matrices so I was trying to have the script ask for input as to which matrix it should be run on. It worked for a single run and then stopped working. This is how I wrote it into the script:

Processing = input('The matrix to be analyzed is:');

This seems like it should be simple, but I just can't seem to find the answer. Thank you in advance.

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Ibrahim Sherif 2021-5-2

在 MATLAB Online 中打开

Use this script program bro:

x=input('Enter the number of rows : ');
y=input('Enter the number of columns : ');
for r=1:x
    for c=1:y
        fprintf('Enter the value in row %d column %d\n',r,c);
        M(r,c)=input('');
    end
end
display(M)

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Answer 1

Youssef Khmou 2014-3-31

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For a single input , what you described is sufficient :

 >>A=input(' Matrix :\n');
 >> %  Enter the matrix , example [4 5 6;3 6 9];

For a number of inputs you only need a manifold where to store them, the rigorous way is to use cells :

 >>N=10;
 >>B=cell(N,1);
 >>for n=1:N
    fprintf(' Entre matrix %d\n',n);
    B{n}=input('');
    end

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Ryan 2014-3-31

That didn't work. It is saying that the index exceeds matrix dimensions on that line, which makes no sense to me.

Youssef Khmou 2014-3-31

That example is working, can you post the script?

i think that problem is due to variables, are your variables names distinctes?

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Answer 2

Abhishek Pawarq 2021-8-22

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/123915-script-that-asks-for-matrix-as-input#answer_772229

在 MATLAB Online 中打开

a = input('Enter the number of rows');
b = input('Enter the number of coloumns');
for i=1:a
    for j=1:b
       p(i,j)=input('Enter the elements');
    end
end
p=reshape(p,a,b)